import sys; input = sys.stdin.buffer.readline
sys.setrecursionlimit(10**7)
from collections import defaultdict
mod = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

import numpy as np

def matrixPow(A, n, N):
	B = np.identity(N, dtype = np.int)
	while n > 0:
		if n & 1 == 1:
			B = (A @ B) % mod
		A = (A @ A) % mod
		n >>= 1
	return B

#処理内容
def main():
	N = int(input())
	A = np.full((10, 10), 1, dtype = np.int)
	for i in range(10):
		for j in range(i):
			A[i, j] = 0

	pre = matrixPow(A, N - 1, 10)
	B = np.full((10, 1), 1, dtype = np.int)
	pre = pre @ B
	ans = sum(pre)
	print(ans[0] % mod)

if __name__ == '__main__':
	main()